Call now: 252-767-6166  
Oracle Training Oracle Support Development Oracle Apps

 E-mail Us
 Oracle Articles
New Oracle Articles

 Oracle Training
 Oracle Tips

 Oracle Forum
 Class Catalog

 Remote DBA
 Oracle Tuning
 Emergency 911
 RAC Support
 Apps Support
 Oracle Support

 SQL Tuning

 Oracle UNIX
 Oracle Linux
 Remote s
 Remote plans
 Application Server

 Oracle Forms
 Oracle Portal
 App Upgrades
 SQL Server
 Oracle Concepts
 Software Support

 Remote S


 Consulting Staff
 Consulting Prices
 Help Wanted!


 Oracle Posters
 Oracle Books

 Oracle Scripts

Don Burleson Blog 







Fix ASMCMD slow performance

Oracle Database Tips by Donald BurlesonJanuary 1,  2015


Question:  I'm running the ASMCMD utility and I get very poor response time.  The slow performance happens when I use ASMCMD utility to access the diskgroup.  How can I make ASMCMD run faster?

Answer:  By default, the ASMCMD command-line interface reads the non-cached v$asm_diskgroup.  You can change this to read the cached equivalent and get faster performance.

To fix slow response time, edit your $ORACLE_HOME/bin/asmcmdcore script and change all v$asm_diskgroup to v$asm_diskgroup_stat, but beware that v$asm_diskgroup_stat will not re-discover changes to your diskgroup.

The Oracle docs note that v$asm_diskgroup_stat, works the same as v$asm_diskgroup, but it doesn't do discovery of new disk groups.  Beware, the output of v$asm_diskgroup_stat does not include any data about disk groups that are new to the system.  



Oracle Training at Sea
oracle dba poster

Follow us on Twitter 
Oracle performance tuning software 
Oracle Linux poster


Burleson is the American Team

Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications.

Errata?  Oracle technology is changing and we strive to update our BC Oracle support information.  If you find an error or have a suggestion for improving our content, we would appreciate your feedback.  Just  e-mail:  

and include the URL for the page.


Burleson Consulting

The Oracle of Database Support

Oracle Performance Tuning

Remote DBA Services


Copyright © 1996 -  2020

All rights reserved by Burleson

Oracle ® is the registered trademark of Oracle Corporation.